The Vietnamese word "anh Tuấn" can be broken down into two parts: "anh" and "Tuấn."
So, "anh Tuấn" can be understood as "Brother Tuấn" or "Mr. Tuấn," referring to a respected or admired male who is named Tuấn. It can imply that the person is not just any man, but someone who holds a certain esteem in the community.